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XElement Constructor (XStreamingElement)

Initializes a new instance of the XElement class from an XStreamingElement object.

Namespace:  System.Xml.Linq
Assembly:  System.Xml.Linq (in System.Xml.Linq.dll)

public XElement(
	XStreamingElement other
)

Parameters

other
Type: System.Xml.Linq.XStreamingElement

An XStreamingElement that contains unevaluated queries that will be iterated for the contents of this XElement.

This constructor iterates through the contents of the specified XStreamingElement, and creates an element with its contents.

The following example creates a source XML tree, and then creates an XStreamingElement from a query on the source XML tree. It then serializes the XStreamingElement to the console, adds a new element to the source XML tree, and then serializes the XStreamingElement again. You can see that element newly added to the source XML tree is not included in the first serialization, but is included in the second.

XElement src = new XElement("Root",
                   new XElement("Child1", 1),
                   new XElement("Child2", 2),
                   new XElement("Child3", 3)
               );
XStreamingElement xse = new XStreamingElement("NewRoot",
                            from el in src.Elements()
                            where (int)el >= 2
                            select el
                        );
Console.WriteLine(xse);
src.Add(new XElement("Child4", 4));
Console.WriteLine("----");
Console.WriteLine(xse);

This example produces the following output:

<NewRoot>
  <Child2>2</Child2>
  <Child3>3</Child3>
</NewRoot>
----
<NewRoot>
  <Child2>2</Child2>
  <Child3>3</Child3>
  <Child4>4</Child4>
</NewRoot>

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5

.NET Compact Framework

Supported in: 3.5

XNA Framework

Supported in: 3.0
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